<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="标题" prop="bannerTitle">
        <el-input
          v-model="queryParams.bannerTitle"
          placeholder="请输入标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:banner:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:banner:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:banner:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:banner:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="bannerList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="ID" align="center" prop="bannerId" />
      <el-table-column label="标题" align="center" prop="bannerTitle" />
      <el-table-column label="分类" align="center" prop="bannerType" />
      <!-- <el-table-column label="描述" align="center" prop="bannerDesc" /> -->
      <el-table-column label="状态" align="center" prop="status" />
      <el-table-column label="是否上架" align="center" prop="isShow" />
      <!-- <el-table-column label="跳转url" align="center" prop="noticeTargetUrl" /> -->
      <el-table-column label="封面图" align="center" prop="noticeCover">
        <template slot-scope="scope">
          <img   v-if="scope.row.noticeCover"
                  style="width:70px;"
                 :src="scope.row.noticeCover"
                 class="avatar">
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:banner:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:banner:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改小程序banner对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="标题" prop="bannerTitle">
          <el-input v-model="form.bannerTitle" placeholder="请输入标题" />
        </el-form-item>
        <!-- <el-form-item label="描述" prop="bannerDesc">
          <el-input v-model="form.bannerDesc" placeholder="请输入描述" />
          </el-form-item>
         -->
            <el-form-item label="分类">
              <el-select v-model="form.bannerType" placeholder="请选择分类">
                <el-option
                  v-for="dict in dict.type.cms_banner_type"
                  :key="dict.value"
                  :label="dict.label"
                  :value="dict.value"
                ></el-option>
              </el-select>
            </el-form-item>
            <el-form-item label="上架">
              <el-radio-group v-model="form.isShow">
                <el-radio
                  v-for="dict in dict.type.cms_banner_status"
                  :key="dict.value"
                  :label="dict.value"
                >{{dict.label}}</el-radio>
              </el-radio-group>
            </el-form-item>
          <el-form-item label="内容">
              <editor v-model="form.bannerContent" :min-height="192"/>
          </el-form-item>
        <!-- <el-form-item label="跳转url" prop="noticeTargetUrl">
          <el-input v-model="form.noticeTargetUrl" placeholder="请输入跳转url" />
        </el-form-item> -->
        <el-form-item label="封面图" prop="noticeCover">
          <el-upload ref="upload"
                     :limit="1"
                     drag
                     class="avatar-uploader uploadMt"
                     :show-file-list="false"
                     action="#"
                     :multiple="false"
                     :http-request="updateNoticeCoverImg">
            <img v-if="opCodeImg"
                 :src="opCodeImg"
                 class="avatar">
            <i v-else
               class="el-icon-plus avatar-uploader-icon"></i>
          </el-upload>
        </el-form-item>
        
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listBanner, getBanner, delBanner, addBanner, updateBanner } from "@/api/system/banner";
import { uploadAvatar } from "@/api/system/user";
export default {
  name: "Banner",
  dicts: ['cms_banner_status', 'cms_banner_type'],
  data() {
    return {
      //图片前缀
      opCodeImg:null,
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 小程序banner表格数据
      bannerList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        bannerTitle: null,
        bannerType: null,
        bannerDesc: null,
        bannerContent: null,
        status: null,
        noticeTargetUrl: null,
        noticeCover: null,
        isShow: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        bannerTitle: [
          { required: true, message: "标题不能为空", trigger: "blur" }
        ],
        bannerDesc: [
          { required: true, message: "描述不能为空", trigger: "blur" }
        ],
        
        bannerType: [
          { required: true, message: "公告类型不能为空", trigger: "change" }
        ],
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    //上传封面图
    updateNoticeCoverImg(params, type) {
      let file = params.file
      let vm = this;
      const formdata = new FormData();
      formdata.append("avatarfile", file);
      uploadAvatar(formdata).then(response => {
        this.form.noticeCover = response.imgUrl;
        this.opCodeImg = process.env.VUE_APP_BASE_API + response.imgUrl;
      });
    },
    /** 查询小程序banner列表 */
    getList() {
      this.loading = true;
      listBanner(this.queryParams).then(response => {
        this.bannerList = response.rows.map(item=>{
          if(item.noticeCover){
            item.noticeCover = process.env.VUE_APP_BASE_API + item.noticeCover
          }
          return item
        });
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        bannerId: null,
        bannerTitle: null,
        bannerType: null,
        bannerDesc: null,
        bannerContent: null,
        status: "0",
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        noticeTargetUrl: null,
        noticeCover: null,
        isShow: null
      };
      this.opCodeImg = null
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.bannerId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加小程序banner";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const bannerId = row.bannerId || this.ids
      getBanner(bannerId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改小程序banner";
        this.opCodeImg = response.data.noticeCover ? process.env.VUE_APP_BASE_API + response.data.noticeCover : null
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.bannerId != null) {
            updateBanner(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addBanner(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const bannerIds = row.bannerId || this.ids;
      this.$modal.confirm('是否确认删除小程序banner编号为"' + bannerIds + '"的数据项？').then(function() {
        return delBanner(bannerIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/banner/export', {
        ...this.queryParams
      }, `banner_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
<style>
  .uploadMt .el-upload-dragger {
    width: 200px;
    height: 200px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
}
</style>